Photosynthesis one liner and important points
| 1. | c | 6. | d |
| 2. | a | 7. | b |
| 3. | b | 8. | a |
| 4. | d | 9. | a |
| 5. | a | 10. | c |
| 11. | b | 16. | d |
| 12. | d | 17. | d |
| 13. | b | 18. | c |
| 14. | b | 19. | c |
| 15. | d | 20. | a |
| 21. | a | 26. | a |
| 22. | c | 27. | c |
| 23. | b | 28. | b |
| 24. | c | 29. | d |
| 25. | a | 30. | b |
Explanations: Important Points
Also read: Plant Physiology MCQ (Multiple Choice Questions)
01: Photosynthesis take place in the chloroplast of a plant cell.
02: The process of photosynthesis is also known as carbon assimilation.
03: One molecule of glucose contains about 686 K calories.
04: Raw material for this process are as follows
- Water
- CO2
05: Hales explained the relationship between sunlight and leaves in 1727 for the first time.
07: Xanthophyll is a colour pigment. Petals of marigold are an excellent source of xanthophyll.
08: The location of photosynthetic pigment is the grana of chloroplast.
09: Chlorophylls absorb maximum light from violet blue and red of the colour spectrum.
10: The maximum absorption of chlorophyll ‘A’ occurs at 410 and 660nm.
Also read: Plant Physiology MCQ With Answers
Plant photosynthesis
11: The maximum absorption of chlorophyll ‘A’ occurs at 452 and 642 nm.
13: In red drop, decrease in quantum yield is observed at wavelength greater than 680 nm.
15: Light reaction takes place in the presence of light in grana of the chloroplast. LR is faster than DR. The chlorophyll absorbs the light energy in LR.
16: The components of the photosytem I are as follows
- Chlorophyll a 700 or P700
- Chlorophyll a 670
- Chlorophyll a 680
- Chlorophyll a 695
- Chlorophyll b
- Carotenoids
- P700 form of Chlorophyll a
17: The other components of the photosytem II are as follows
- Chlorophyll a 660
- Chlorophyll a 670
- Chlorophyll b
- Phycobilins
20: In an oxygenic Photosynthesis, water is used as the electron donor.
22: Types of light dependent reactions are as follows
- Cyclic
- Non-cyclic
23: LHC stands for Light Harvesting Complex
25: Light-dependent reactions take place on the thylakoid membranes
Also read: PGR MCQ: Plant Growth Regulators (Phytohormones)
Light and dark reactions
26: Hill and Bendall proposed ‘Z-Scheme’.
27: The products of light reaction are as follows
- NADPH
- ATP
- O2
28: RuBisCO is the precursor of the Calvin cycle.
30: In Dark reaction or Calvin cycle, 18 ATP and 12 NADPH are consumed in the production of 1 glucose molecule.